Chris Morgan insists 'places are up for grabs' ahead of the forthcoming play-off campaign.
Morgan made five changes to the starting XI at Crewe in midweek and speaking ahead of the clash with Preston North End; he insists everyone has to earn their place in the team for the play-off tie.
Many of the youngsters, who Morgan has worked with in the U21s this term, have been in and around the first-team squad in recent weeks, with Callum McFadzean starting his first league game in midweek.
The former skipper commented: "I have worked closely with all the youngsters for much of the season and I wouldn't think twice about playing any of them if I thought it gave us the best possible chance of winning a game. Places are up for grabs and like I have done since day one, I will pick each team on merit and dependent on the opposition.
"All the lads are training with a smile on their faces and that pleases me, they are all desperate to play and with this group you could never question their desire to succeed.
"The players know we have bigger games on the horizon but Saturday remains vitally important for a number of reasons. Everyone is training and playing for a starting jersey, which is what I told them on day one. We probably have around 20 players who firmly believe they should be in the starting line-up, for me that is a good thing.
"The team for a home and away tie could be different depending on the outcome of the first-leg, but the lads know I will pick the team that I believe is best equipped to win each game.
"I know I will disappoint the lads that aren't selected, but as I keep saying if we are to win promotion everyone will play their part."